POLYISOPRENE is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYISOPRENE

Synthetic Rubber

Safety grade: A

Polyisoprene is a rubber-like polymer that mimics the stretchy, elastic properties of natural rubber. It's created in laboratories to provide consistent performance in cosmetic formulations.

This ingredient thickens and controls the texture of cosmetic products, helping them maintain the right consistency and spreadability on skin.

Graded using: COSING.

Last verified: May 26, 2026